摘要
采用离子交换法将不同组份的十烷基三丁基溴化鏻交换到蒙脱土的层间得到柱撑蒙脱土.用热重分析(TGA)、X-射线衍射(XRD)和傅里叶变换红外光谱法(FTIR)等对其结构进行了表征,并测定其抗菌活性.研究发现柱撑蒙脱土中季鏻盐的热分解起始温度大于210℃,具有较好的热稳定性;季鏻盐含量越高,柱撑蒙脱土的层间距越大,抗菌活性越高.
Pillared montmorillonites were prepared by introducing different content of decyltributylphosphonium bromide into sodium montmorillonite through ion-exchange method. The structures were studied by thermogravimetric analysis （TGA） methods, X-ray diffraction （XRD） technique and fourier transform infrared （FFIR） spectroscopy. Also the antimicrobial activity was studiesd. The results showed that the onset temperatrure of the decomposition for quaternary phosphonium salts in pillared montmorillonites were all higher than 210℃, and they were preferable thermal stability. The interlayer spacings of montmorilonites enlarged and the antimierobial activity improved with the increase of the content of quaternary phosphonium salts in pillared montmorillonites.
出处
《暨南大学学报（自然科学与医学版）》
CAS
CSCD
北大核心
2009年第5期534-538,共5页
Journal of Jinan University(Natural Science & Medicine Edition)
基金
国家自然科学基金项目(20676049
20871058)
广东省自然基金科学基金项目(05200555)
广东省部产学研合作专项资金项目(2007B090400105)
广东省应用微生物开放实验室项目(SWKF200704)
暨南大学本科生科技创新工程项目(CX08067)
关键词
季鏻盐
柱撑蒙脱土
制备
表征
抗菌活性
quaternary phosphonium salt
pillared montmorillonites
preparation
characterization
antimierobial activity
